I am very impressed with the auto focus feature on the iPhone 3gs, it catches a lot more detail. However, the brightness level has proven to be a bit of a hassle, but I am impressed with the changes on the camera’s function. Plus the thousands of Photography apps are great perks and perfect additions to the photos, so the end result is usually very satisfactory for a cell phone camera. Plus there seems to be a lot less noise output in the images, which is a major plus.